Use of geomembranes in dams: 50 years of different applications around the world

Abstract

In almost 300 dams worldwide, geomembranes are the main waterproofing component. The geomembrane is generally associated with other geosynthetics performing various functions. In this paper, uses of geomembranes in the various types of dams are reviewed. The types of dams reviewed include: embankment dams (earth and rockfill dams), concrete and masonry dams, and roller-compacted concrete (RCC) dams. Design and construction aspects are considered, as well as the selection of geomembranes and their performance (including seepage control and durability). The paper is illustrated using examples of new dams and rehabilitation of existing dams.